e-portfolio

Bachelor of Science (Honours) in Architecture / (Architecture) Building science & Services (BLD62304)

Project 1: Lighting and VAC design for comfort Submission Date: 09/05/22

Name: Sakura Kawanaka.

ID: 0347623 LECTURER: MS SHARON.

9772

3325

721

4566

1160

WARDROBE

NOTE:

DRAWN BY: SAKURA KAWANAKA ID NUMBER: 0347623 SUBJECT: BUILDING SCIENCE AND SERVICES

KITCHEN TABLE

QUEEN BED

DESK

2013

BALCONY

3875

1862

TV STAND

ASSIGNMENT: BEDROOM AND LIVING ROOM OLD FURNITURE LAYOUT AND REFLECTED CEILING PLAN

SCALE: 1:100 DATE : 7th MAY 2022 LECTURER : MS SHARON

9772

3325

721

4566

1160

NOTE:

KITCHEN TABLE

QUEEN BED

WARDROBE

2013

BALCONY

3875

1862

DESK

DRAWN BY: SAKURA KAWANAKA ID NUMBER: 0347623 SUBJECT: BUILDING SCIENCE AND SERVICES

ASSIGNMENT: BEDROOM AND LIVING ROOM OLD FURNITURE LAYOUT AND REFLECTED CEILING PLAN

SCALE: 1:100 DATE : 7th MAY 2022 LECTURER : MS SHARON

LIGHTING AND VAC DESIGN FOR COMFORT Sakura Kawanaka 0347623

CURRENT ROOM CONDITION The balcony room is very bright in the morning when the sun rises with windows facing east. The kitchen has a window that lets in a small amount of light, but the living room is surrounded by doors on all sides which make it difficult for light to penetrate, so it is dark even during the daytime. Therefore, when working during the day, I use the balcony room to focus.

ISSUES THAT CAN BE IMPROVED -Lighting 1.1 Severe illuminance difference Brightness is a particularly essential element of the working environment. However, the balcony room I am currently using as my workspace is not the best environment for studying, as the light intensity varies greatly. The door side where the desk is located gives the impression that my hands are darker on cloudy days, making it difficult to work. Also, the lighting itself has an illuminance of 96 lux, so it is not very efficient even when the lights are switched on. On the other hand, the window side is too bright by the direct sunlight and reflects on the computer, making it impossible to see anything on the screen.

Lux level estimate 1 10-400 1,000 10,000-25,000

twilight sunset/sunrise overcast day full daylight

a. The lux measurement app near door at the balcony room (460 lux)

Recommended lux levels living room bedroom working space kitchen in general

(lux) 100-200 200-550 550-1,100 200-1,000

b. The lux measurement app near the balcony window (3300 lux)

1.2 The bedside lamp There is an injury risk when you walk in the dark. However, the distance from the bedroom light switch and the bed is far away. I grope in the dark every day to get to bed. Sometimes I do not notice my belongings on the floor and fall. A bedside lamp is provided but cannot be switched on as there is no plug nearby.

-Thermal comfort Excessive temperature differences Direct sunlight raises room temperatures more easily. It starts to get particularly hot at 10:00 a.m. three hours after sunrise when a fan alone is not enough to stop you sweating. The temperature felt at this time is 30°C. The air conditioner starts to lower the temperature of the balcony room all at once within 10 minutes of switching it on. Because of the direction of the wind, the chilly wind hits me directly when I sit at my desk. The remote control for the air conditioner is faulty and cannot be changed from the temperature setting of 16 degrees Celsius even if batteries are inserted. For these reasons, daytime temperature control in the balcony room is exceedingly difficult.

Image of the direction of sunlight coming through from the balcony

-Electricity 1.1 Frequent switching As explained in the previous paragraph, during the daytime when there is direct sunlight, the air conditioner must be switched on and off repeatedly every 15-30 minutes to maintain a comfortable temperature. However, frequent switching on and off shortens the life of the air conditioner and risks breakdowns. Furthermore, it also raises the consumption of electricity.

1.2 Excessive number of lights

There are six lights in the living room, including the entrance, but there is not much difference in illumination whether only one light is on or all of them. Encourage energy saving by reducing the number of lights.

a. The lux measurement app in the living room with 2 kitchen lights (37 lux)

b. The lux measurement app in the living room with 6 lights (84 lux)

A NEW ROOM IDEA -Balcony room The desk position was shifted to the TV stand area to avoid direct air conditioning air as much as possible. It is easier to regulate the temperature. The air conditioner size was changed from 2.5 HP to an appropriate size (1.5 HP) for a 15 15 sq meter room to prevent rapid cooling.

The cool white fluorescent light was placed in front of the desk to create an environment in which it is easier to concentrate on work. A lamp was placed next to the bed in a position where the plug could be plugged in so that the light could be switched off easily when going to bed.

-Living room The living room and kitchen area prevented wasteful diagramming of electricity by reducing the number of lights.

LIST OF NEW PRODUCTS

• • • • • • • •

Homedal LED surface light (round) 18watt LED Surface type Dimension: 220mm Dia. Shape: Round - Flicker-Free No UV Eco Friendly & Long Lasting 20 Ingress Protection Body Color: white Light Color: 4000K

• • •

LAMPAN (table lamp white 29cm), LED bulb E14 globe opal white Plastic strong, durable, lightweight and versatile RYET LED bulb E14 470 lumen, globe opal white The LED light source consumes up to 85% less energy and lasts 10 times longer than incandescent bulbs.

Lamp dimensions: 78x45 Colour rendering: 80 Weighted energy consumption: 4,5kWh/1000h

•

Colour temperature: 2700K

• •

T5 LED Tube Light 220V 30cm • • • • • • • • •

Length:30cm (300mm) Wattage: 5W Input: AC180V-265V LED Chip: 5 W 22pcs SMD2835 CRI(Ra): More than 80Ra Luminous Flux (LM): 400LM-800LM Features: High Brightness, Energy Saving, High efficiency Color Temperature(K): Cold White 6000k Application: Living room, Bedroom, Industrial, Commercial shops, Subway

• • • • • • •

Deka Ceiling Fan 5 Blade White Measurement: 56-inch Diameter Speed: 4 Speeds Reverse Function Timer: 1.3.6 Hours Timer Blades: 5 Blades A.B.S Polymer Design Remote Control: Slimline Full Function Remote Control Motor: AC Motor

HITACHI RAS-EH13CKM standard series(R13)/ 1.5HP • • • • • • • • •

Phase 1 Ø, Frequency 50H, Voltage 220-230V Cooling capacity: kW3.5, BTU/h 11,940 Energy star rating 3/5 Total power input 1,100W Indoor sound level 29-48dB Indoor (W x H x D, mm): 780 x 280 x 230 Air sleep timer Up-down auto swing Anti-corrosion green fin

Paragon Lighting Specialist Sdn Bhd 6, Jalan SS 15/4d, Ss 15, 47500 Subang Jaya, Selangor

L1

IKEA Damansara/ IKEA online

L2

2, Jalan PJU 7/2, Mutiara Damansara, 47800 Petaling Jaya, Selangor

Shopee online shorturl.at/gvD 25 L4

Shopee online

F1

shorturl.at/rDE JX

Johnson Controls Hitahi Air Conditioning Malaysia Sdn.Bhd. Bangi Industrial Estate, 10, Jalan Kemajuan, Seksyen 16, Bandar Baru Bangi, Selangor

A2

BILL OF QUANTITIES Item

Description

Unit

Qty

Rate (RM)

Total (RM)

Note

L1

Homedal LED surface light/rounded ceiling light 18W

nos

5

35.00

175

Warm white 4000K

LAMPAN (table lamp white 29cm), LED bulb E14 globe opal white L2 L4

F1

A2

T5 LED Tube Light 220V 30cm Deka Ceiling Fan 5 Blade White HITACHI RAS-EH13CKM standard series(R13)/ 1.5HP

nos

1

69.80

69.8

Lamp and bulbs sell separately, bulbs cost 19.90rm /2 pieces

nos

1

9.93

9.93

Cool white 6000K

nos

1

282

282

nos

1

142cm/ white Indoor (W x H x D, mm): 780 x 280 x 230

1,599.00 Total

1,599 2,135.73

Bachelor of Art (HONS) in Interior Architecture

Building science & Services [BLD 62304103247]

Assignment 2: Indoor Comfort Design and ‘Invention’ Lecturer: Sharon Teh Ai Ping

Name: Sakura Kawanaka Student ID: 0347623

INDOOR COMFORT DESIGN AND INVENTION Sakura Kawanaka 0347623 Part A -Plan view of the defined room

-Material of the walls and the resistance concrete

glass Structure: RC Structure Wall: R.C wall Plaster... 12.5mm RC wall... 200mm Weather resistant paint...

1.5mm Emulsion paint... 0.5mm

Resistance (R-value) 0.20 per inch (plaster) 1.11 per inch (RC wall)

Glass wall (window)...10mm

0.03 (Plain glass 1/8inch)

Wall Finishes: External - Plaster and Paint, Internal - Plaster/Skim Coat and Paint Painting: External - Weather Resistant Paint, Internal - Emulsion Paint -Temperature

7am (25°C)

outdoor temperature 12pm (32°C)

5pm (28°C)

Room temperature (16°C)

-formula for heat transfer rate

Q=(A×ΔT)/R Q= heat transfer rate (BTU/hr) A= area of the wall (ft2) ΔT= temperature differences (°F) R=resistance (ft 2× °F × hr/BTU) If there is some layer for the wall add it (ex. R total=R1+R2+R3) =m2 × K/W Measurement is inch and °F -Heat transfer rate

WALL 1

Area of the wall (ft2) = width × height =10.9(ft)×10 (ft) =109 Resistance (F°ft2hr/BTU) = R1 (plaster)×2+R2 (RC wall) = (0.02/12) (R1 value/ft) ×109 (ft2) × 2+ (1.11/12) (R2 value/ft) × 109 (ft2) = 13.72 (F°ft2hr/BTU) Temperature differences (F°) morning (7am) Temperature differences (F°) = 77 (F°) -60.8 (F°) =16.2 Heat transfer rate (BTU/hr) =109 (ft2) × 16.2 (F°) /13.72 (F°ft2hr/BTU) =128.70 (BTU/hr)

noon (12pm) Temperature differences (F°) = 89.6 (F°) -60.8 (F°) = 28.8

evening (5pm) Temperature differences (F°) =82.4 (F°) -60.8 (F°) =21.6

=109 × 28.8/13.72 =228.84

=109 × 21.6/13.72 =171.60

WALL 2

Area of the wall (ft2) Glass wall= 9.5 × 8.2 = 77.9, Concrete wall = 12.7 ×10-77.9=49.1 Resistance (F°ft2hr/BTU) Glass wall = (0.03 × 8)/12 × 77.9=1.56, Concrete wall = (0.02/12) ×49.1 × 2+ (1.11/12) × 49.1= 4.7 Temperature differences (F°) morning (7am) Temperature differences (F°) = 77-60.8 =16.2 Heat transfer rate (BTU/hr) Glass =77.9 × 16.2/1.56=808.96 Concrete =49.1 × 16.2/4.7=169.24 total =808.96+169.24=978.20

noon (12pm) Temperature differences (F°) = 89.6-60.8 = 28.8

evening (5pm) Temperature differences (F°) =82.4-60.8 =21.6

Glass =77.9 × 28.8/1.56=1438.15 Concrete =49.1 ×28.8/4.7=300.87 total =1438.15+300.87=1739.02

Glass =77.9 × 21.6/1.56=1078.62 Concrete =49.1 ×21.6/4.7=225.65 total =1078.62+225.65=1304.27

WALL 3

Area of the wall (ft2) = 10.9×10=109 Resistance (F°ft2hr/BTU) = (0.02/12) ×109 × 2+ (1.11/12) × 109 = 13.72 Temperature differences (F°) morning (7am) Temperature differences (F°) =77-60.8 = 16.2 Heat transfer rate (BTU/hr)

noon (12pm) Temperature differences (F°) =77-60.8 = 16.2

evening (5pm) Temperature differences (F°) =77-60.8 = 16.2

=109 × 16.2/13.72 =128.70

=109 × 16.2/13.72 =128.70

=109 × 16.2/13.72 =128.70

WALL 4

Area of the wall (ft2) = 12.7 ×10=127 Resistance (F°ft2hr/BTU) = (0.02/12) ×127 × 2+ (1.11/12) × 127 = 12.17 Temperature differences (F°) morning (7am) Temperature differences (F°) =77-60.8 = 16.2 Heat transfer rate (BTU/hr)

noon (12pm) Temperature differences (F°) =77-60.8 = 16.2

evening (5pm) Temperature differences (F°) =77-60.8 = 16.2

=127 × 16.2/12.17 =169.05

=127 × 16.2/12.17 =169.05

=127 × 16.2/12.17 =169.05

-Heat transfer rate analysis most critical highest heat gain most utlised space

Wall 2 Wall 2 Near wall 3

As it has the highest heat transfer rate =1739.02 (BTU/hr) The highest heat transfer rate =1739.02 (BTU/hr) 12 p.m.

As the heat transfer rate is least and stable =128.70 (BTU/hr)

Part B -Problem presentation Wall 2(Figure1) recorded the highest heat gain especially at noon. This is due to the fact that the balcony window is located to the east side of the room. The sunlight comes directly into the room from morning to noon, which is not only dazzling but also raises the room temperature rapidly.

Sudden temperature changes and direct sunlight make the residents uncomfortable.

(Figure1)

-Solution This window wall has appropriately sized curtains installed, but due to their high light-shielding properties, closing the curtains darkens the room and makes it difficult to work in there.

Although I have tried to open the windows to improve ventilation or turn on the air-conditioner to keep the room at the appropriate temperature, leaving the windows open allows insects to enter and the noise from the highway interferes with online classes. Also, when the air conditioner is switched on too often, electricity is used excessively resulting in high electricity bills.

(Figure 2) I decided to build a bamboo blind concept shade to avoid these problems, control the temperature of the room, and reduce the light glare. This product does not completely block out sunlight but creates several gaps to lighten the room and reduce the rapid temperature rise in the room.

-Product idea

This product is used on the outside of windows. Attach two hooks with suction cups to the window and hold it in place. It is quite easy to remove and install the shade. When it is not needed, you can take it and put it in the room. e.g. at night or in the rain. If you clean it, simply wipe lightly with a wet rag.

-Description of components The design of this product inspired by the awning used in cafés and the bamboo blind, a common awning in Asian homes. It incorporates both the sun-shading effect of awning and the light-intake effect of bamboo blind.

× awning

bamboo blind

product compon ents

-Material analysis Bamboo skewers This material is also used for real bamboo blinds. Flexible, strong and easy to process. Bamboo has low thermal conductivity, so it does not get heated, and cannot be melted when exposed to direct sunlight.

Acrylic yarn The thread is strong and firm and does not break even when it is tied tightly. Acrylic has a texture closest to wool among synthetic fibers. It is a material often used for jumpers.

Acrylic is made from acrylonitrile, a petroleum-based material.

• •

soft Strong elastic recovery (ability to return to its original shape) • Resistant to wrinkling • Resistant to chemicals and insects • Does not shrink or lose shape after washing • Poor water and moisture absorption, so it dries easily when exposed to rain.

100% PE sheet Stain-resistant, water-repellent, and easy to clean. Suitable for mass production, thus reducing the cost of frequently used or replaced items. It is resistant to low temperatures and does not deform or become brittle at temperatures down to -20°C. However, it is not suitable for use in high temperature environments above 70°C, as it can deform and burn.

Flexible and easily scratched, so it cannot be used in applications where it is subjected to mechanical impact, such as bending with strong force or touching sharp objects.

It has the characteristic of being vulnerable to UV rays and deteriorates quickly in environments exposed to direct sunlight, so it needs to be replaced frequently.

Steel wire lattice Strong metal, not easily deformed in shape by external forces. to use as a basement for flexible products like sheets.

• Low cost • Excellent chemical resistance • Extremely low water absorbency • Excellent non-stick properties • Lightweight However, caution must be exercised as they start to deform at temperatures above 60°C. Tension pole The advantages of installing the bars are as follows: • As long as there is a wall on both sides, it can be installed everywhere • It can be removed anytime • install it without damaging the wall • purchased inexpensively On the other hand, the disadvantage is that it is not strong enough to hang objects weighing more than 6 kg. The design of the product that there is a possibility of it slipping off.

Drawing paper Drawing paper is thicker and more durable than origami paper and is therefore effective in reproducing three-dimensional material.

They are also easy to process and can be easily cut with a cutter. It flutters when the wind blows, making it easy to ring the bell.

Bell (often globular) Wind chimes have long been used to overcome hot weather. A small bell-shaped object made of metal, glass or ceramic, with a tongue with wind-catching feathers, strips of paper, etc., hanging down inside, which emits a pleasant sound when blown by the wind. The sound can make people cool down.

However, these are not cheap, so the sound of a bell similar to this sound is used to inexpensively reproduce a wind chime.

Masking tape

I Masking tape is meant to be a curing tape, but due to its low adhesive strength, it is often used for temporary fixing of materials.

Weak adhesion allows for redoing the process many times. To increase the strength, the adhesive can be increased by repeatedly wrapping it around the same position. Affordable cost.

Cable ties Nylon is a typical material for cable ties. The reason many cable ties are made of nylon is because of its durability and flexibility. Nylon is an extremely tough material with high tensile strength - even the cable ties available at DAISO shops are strong and weather resistant. Once tied, they cannot be removed, but they are held firmly in place. Strong and useful when fixing bars and steel lattice.

-Construction Shade

1. Align the length of the bars with the side of the window and secure the bars with masking tape.

3. Draw a line where the table sheet is to be cut to match the length of the stick.

2. Secure the bar and wire lattice with 3 cable ties.

4. Cut straight along the line with a cutter.

5． Secure with masking tape to prevent rattling, then tighten the ties and cut them.

6. 50 bamboo skewers are woven together with thread to make a blind.

7. Secure 5 and 6 with three cable ties.

Wind chimes

1. Measure and make eight 1×20cm squares, a 1×17cm square and a 3×10cm square.

2. Cut them and line them into 1 cm squares.

3． Punch a hole in the centre of the rectangle.

4． Eight rectangles arranged evenly around the hole and attached with glue.

５． Connect the end of each rectangle to the loop.

6． Fixing the bell and paper using thread

7． Tie the thread to the shade.

8． Attach hooks with suction cups to the window and install the bar.

-Benefits of product installation • • • •

Avoid direct sunlight The room remains bright.

Preventing a sudden increase in room temperature.

Feel the sound of the wind to cool you down.

-Cost of materials

(including tools)

product pole bond cable ties (50 pieces) bamboo sticks (320 pieces) suction hooks (4PC) bells tablecloths wall hanging net

number 1 1 1 1 1 1 1 1 total

cost 5.9 5.9 5.9 2.3 2 2.7 6.5 6.7 37.9 RM

-Design Value Design Value=market value – material costs(excluding tools)

Market value=(10+10+15+40+60+60+50+50+30+100+30+50)÷12 Material costs= 5.9+5.9+2.3+2+2.7+6.7 Design value= (10+10+15+40+60+60+50+50+30+100+30+50)÷12-(5.9+5.9+2.3+2+2.7+6.7) = 16.58 +16.56RM -Refection I was quite worried about the design value could get minus. But surprisingly, I earned +16.58RM. I put effort into reducing the cost by using my own tools like ties and paper, but I never thought about using secondhand shops or other cheap shops. Also, I got inspired by other people’s work. Especially the one with plants and pipes. I did not expect it to cost only less than 20RM. The design was well thought out. If I put in a few more functional mechanisms, my product would attract more customers.

-references https://www.cmlluxuryblind.com.my/productsbycat/cid/270116/bamboo-blinds.html https://www.pinterest.com.au/pin/247557310740365350/

Bachelor of Art (HONS) in Interior Architecture

Building science & Services [BLD 62304103247]

Final Project: Building Services Design in Bathroom Lecturer: Sharon Teh Ai Ping

Name: Sakura Kawanaka Student ID: 0347623

2400 1360

1040

BATHROOM LEGEND DESCRIPTION

QTY

ILLUMINATION

CIRCULAR CEILING LIGHT

1

WARM WHITE

WALL LIGHT

1

WARM WHITE

ONE WAY SWITCH

1

EXHAUST FAN

1

-

D B

DB BOX

1

-

V

VENT PIPE

1

-

D

DRAIN PIPE

3

-

600

2850

1200

450

SYMBOL

600

WATER SUPPLY

DRAINAGE

ELECTRICAL SUPPLY LINE

NOTE:

DRAWN BY: SAKURA KAWANAKA ID NUMBER: 0347623 SUBJECT: BUILDING SCIENCE AND SERVICES

ASSIGNMENT: BATHROOM SECTION-A VIEW

SCALE: AS SHOWN DATE : 3rd JULY 2022 LECTURER : MS SHARON

6000

4000 1600

1100

1300

A V

1250

D

D

1150

2400

B

D

D B

NOTE:

DRAWN BY: SAKURA KAWANAKA ID NUMBER: 0347623 SUBJECT: BUILDING SCIENCE AND SERVICES

ASSIGNMENT: BATHROOM PLAN VIEW

SCALE: AS SHOWN DATE : 3rd JULY 2022 LECTURER : MS SHARON

4000 1100

1300

2850

1600

D B

NOTE:

DRAWN BY: SAKURA KAWANAKA ID NUMBER: 0347623 SUBJECT: BUILDING SCIENCE AND SERVICES

ASSIGNMENT: BATHROOM SECTION-B VIEW

SCALE: AS SHOWN DATE : 3rd JULY 2022 LECTURER : MS SHARON

Task 1(a) Site Selection & Qualitative Description of Incorporated Building Services A Water Education Facility This container building is located near the river in Selangor. It was established for educational purposes containing a water dome that reuses river water and a rest area with fish displays; a café on the first floor selling drinks. A screen on the roof allows children to receive water education with views of the Selangor River.

Selected area of SITE: Ground Floor (bathroom area)

Specific activities & building services of selected area The ground floor is a space where children who have played in the water can shower and use the toilet.

1. Entrance Containers are difficult to live in if left in their current state, as they tend to trap heat and block light. It allows air and light to enter easily by cutting out the side. The structure is designed with sunlight to penetrate, and no lights are needed which needs a lot of electricity to brighten up the space.

Lighting: No lights are needed because there is enough light coming in from outside as the doors are glazed. But one light will be inserted for any special occasion like cloudy days. The light colour should be warm white to produce a relaxing space. LED light is used in consideration of the environment and reduced electricity use.

Basin: It was installed to wash hands after the toilet. Separate toilet space and a washbasin are provided so that people who do not use the toilet can also use a washbasin. This water is also purified river water.

AC: Air conditioner is needed to reduce the temperature inside as containers are prone to heat retention. It will be located as far away from the shower room as possible to avoid damage to equipment caused by moisture.

2. Toilet The toilet is used by people who use this facility. As the facility conveys the importance of water, toilet water is reused directly from the neighbouring artificial waterfall, the water was made by purifying water from the river.

Lighting: Requires brighter light than the entrance light. The small windows and the central location of the container make it difficult for natural light to penetrate. LED light is used in consideration of the environment and reduced electricity use.

Toilet: A floor-drain toilet will be installed as the construction of the facility is identical to a double story house. The inside of the restroom is enclosed except for a thin ceiling opening and a small window to ensure privacy. The sound insulation wall was not incorporated this time, as privacy is also ensured by the sound of the nearby artificial waterfall. A narrow gap and a small window at an elevated level of the wall prevent being seen from the outside and allow air conditioning air to be taken in.

3. Shower Room The shower room is used for washing up the body after playing in the nearby river or the artificial waterfall. Part of the water from the artificial waterfall is reused. It is relatively hot in the containers, but the shower room is so humid that it breaks down when AC is installed. An exhaust fan was inserted as an alternative.

Lighting: There are no windows and light only comes from behind the curtain, so bright lights are required. However, as the shower room is a relaxing space, the colour of the light should be soft.

Shower: A floor-drain shower will be installed as with the toilet. This water also reuses river water. As the building is built in the middle of nature, the electricity supply is difficult to obtain and for an electricity-saving purpose, only a cold water shower will be inserted.

Exhaust fan: A fan is installed on the ceiling to avoid rising humidity. The shower room has no windows, and it is difficult to ventilate. The space is compact, so the ventilation fan should be recessed into the ceiling.

Task 1(b) Designing and Justification of Building Services Selection & Location -Lighting Catalog Appropriate luminance level for bathroom is 50-80 lumens/m2 This bathroom is 14.4m2.

50×14.4=720 80×14.4=1,152 720 to 1,152 lumens are the appropriate luminance for this bathroom.

3,000lm=50W(LED), 1,000lm=16-17W(LED) Product

L1

[SIRIM] LED 7W Round Down Light

Qty

Picture

1

Price (RM)

4.2

Detail • • • • • • • • • • •

SVALLIS LED wall lamp with swing arm, white, L3

• •

1

139

Life span 25,000hrs Warm white 3000K Non-dimmable -Built-in LED 95mm x 25mm [Cut out length = 70mm Lumen: 560lm Voltage: 160V ~ 265V Built-in LED light source.

The lamp emits 340 lumens light colour: warm white (2700 Kelvin).

The light source has a lifetime of approx. 25,000 hours. This corresponds to about 20 years if the lamp is on for 3 hours per day.

Base/ Arm: Zinc, Powder coating Shade: Polycarbonate plastic

The lights of the bathroom are 14.5W (7+7.5W).

Convert to lumens 14.5/16.5×1000=878.79lm Its number is between 720 and 1,152 that indicates the brightness of the bathroom is appropriate.

Monthly energy use of electrical items Energy use per hour (kW)×Time spent in a day (Hours)×30(days) L1 0.007kW×7H×30days=1.47kWhr L2 0.0075×7×30=1.575kWhr Total Energy use for lighting = 3.045kWhr

-Bath related Catalog

B1

Product [ZELLA] C615S One Piece Toilet Washdown Water Closet (STRAP) Soft Closing Seat & Cover

Picture

Price (RM)

Detail • • • • • • •

675×375×730mm S-trap 200mm Floor drain Wall to floor drain is 250mm White, 12kg Durable weight 100kg Endurance 2-10 years

• • •

Pressurised water 3 types Material: Stainless Steel Rain Shower Head Size: 20cm x 20cm Hand Shower Size: 21.5cm x 3.4cm Hose Length: 150cm Weight: 3kg Large storage rack Liftable shower rod Endurance 5-10years Endurance 10-15years Material: ceramic Size 48×37×13cm Single lever Safety design with rounded corners Smooth, lustrous and easy to clean

349.00

•

B2

SHARK Shower Set 3 Function Black Round shower head

134.90

B3

Small ceramic washbasin

205.50

• • • • • • • • • •

•

VAC Catalog Product

A1

Mitsubishi Air Conditioner 1.5HP e

A2

exhaust fan Integrated Ceiling Toilet DC Frequency Conversion Mute300×30 0

Picture

Price (RM)

Detail • • • • • •

1,419

• • • •

Cooling Capacity (Btu/hr)12,283 EER (Btu/h.W) 10.97 CSPF 3.47 Power Input (kW) 1.12 Running Current (A) 5.0 Power Supply 230V, 50Hz, Single Phase Easy clean design Weight 26kg 718 x 255 x 525mm Last long 9-10 years

• • • • •

Discharge air volume 380m3/hr 300×300mm Weight 1.0 kg 20-30dB Life span 50,000hrs

229

Monthly energy use of electrical items Energy use per hour (kW)×Time spent in a day (Hours)×30(days) A1 1.12kW×7H×30days = 0.2352kWhr A2 0.0128kW ×7H×30days =2.688kWhr Total Energy use for VAC = 2.9232kWhr

AC size calculation

AC size (HP)=Total Heat Load (BTU)÷9800 Total heat load contains area BTU, window BTU, occupants BTU, equipment BTU and lighting BTU.

Step 1: calculate area BTU Length (ft) × width(ft)×31.25 Length of the room = 2400mm = 7.87ft Width of the room = 4000mm = 13.12ft

7.87×13.12×31.25=3,226.70(BTU)

Step 2: calculate window BTU South window BTU = Area of South facing windows (m. sq.) x 868 If no shading, South window BTU = South window BTU×1.4 Area of south facing window = 2.4m × 2.85m

2.4×2.85×1.4×868=8,311.97(BTU)

Step 3: calculate occupants BTU Occupant BTU = number of people x 600BTU number of people= 4

4×600=2,400.00(BTU)

Step 4: calculate equipment BTU Equipment BTU = total equipment watts x 3.4 Total equipment watts=0

0×3.4=0(BTU)

Step 5: calculate lighting BTU Lighting BTU = total lighting watts x 4.25 total lighting watts 7+7.5

14.5×4.25=61.63(BTU)

Step 6: calculate the total BTU Total value of step1 to 5 3,226.70+ 8,311.97+ 2,400.00+ 0+ 61.63 = 14,000.03(BTU)

Step 7: put step6 result into the AC size formula AC size (HP)=Total Heat Load (BTU)÷9800

14,000.03÷9800=1.43 (HP) Is the appropriate AC size.

Estimated calculation of energy use

Product L1 L2 A1 A2

kW 0.007 0.0075 1.12 0.0128

Quantity 1 1 1 1

Time (Hrs)/day 7 7 7 7

kWhr/Product 0.049 0.0525 7.84 0.0896 total usage (kWhr) total bill (RM)

1 day

1 month

Total kWhr 0.049 0.0525 7.84 0.0896 8.0311 4.00

Total kWhr 1.47 1.575 235.20 2.688 240.933 120.50

*The rate of electricity is RM0.5/kWhr

Task 1(c) Water Supply Network & Drainage of Bathroom Shown in A3 paper above

Task 1(d): Integrated Building Services in Drawings Shown in A3 paper above